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Glacier Highway over Cowee Creek

Juneau City and Borough, Alaska · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Glacier Highway over Cowee Creek in Juneau City and Borough, Alaska, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1971, making it 54 years old at the 2025 inventory.
It carries about 130 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 29 of the 47 inventoried bridges in Juneau City and Borough rated fair (61.7%); 1 (2.1%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous concrete stringer or multi-beam girder
Length	about 191 ft
Location	Mile Point 38.0
NBI structure number	1220
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.

Bridge	Built	Vehicles/day	Condition
Egan Drive over Jordan Creek (egan Dr)	1971	21,700	Fair
Egan Drive over Vanderbilt Creek	1973	17,000	Good
Egan Drive over Salmon Creek Powerhouse	1973	16,900	Fair
Glacier Highway over Mendenhall River	2015	15,923	Good
Egan Drive over Salmon Creek	1973	13,800	Fair
Jnu Douglas Br Rd over Gastineau Channel	1981	12,800	Fair